Solder



Patented Feb. 16, 1937 UNITED STATES PATENT OFFICE SOLDER Cleveland J. McKinney, Hillsdale, Mich.

No Drawing. Application October 19, 1936, Serial No. 106,453

1 Claim.

This invention relates to solders and has for an object to provide a solder which will not only solder all metals that conventional solder will unite but also will solder aluminum metal without the use of any flux whatsoever.

A further object of the invention is to provide a solder that will fuse with aluminum metal and produce a strong joint.

A solder constructed in accordance with the invention is composed of tin, lead and copper, in substantially the following proportions.

Per cent Tin 48 Lead 48 Copper 4 especially valuable in soldering aluminum CLEVELAND J. MCKINNEY. 

